The general coupling of amine/ether C(sp3)–H bonds with alkenyl/(hetero)aryl C–O electrophiles is reported with high selectivity.
氨基/醚C(sp3)-H键与烯基/(杂)芳基C-O亲电试剂的普遍偶联反应报道了高选择性。
Highly efficient Amination in Neat Water of Benzyl Chlorides with Dialkylformamides Catalysed by <i>N</i>-Heterocyclic Carbene-Palladium(II)-1-Methylimidazole Complex
作者:Wen-Xin Chen、Cai-Yun Zhang、Jian-Mei Lu
DOI:10.3184/174751913x13787959859344
日期:2013.10
Dialkylformamides are excellent N-sources in the amination of benzylchlorides when catalysed by a NHC-Pd(II)-Im complex. In the presence of NaOH and the catalyst, variously substituted benzylchlorides and five different dialkylformamides reacted smoothly to afford the corresponding N,N-dialkyl-benzylamines in good to almost quantitative yields in eco-friendly solvent water at 50 °C within 3 h.
BF<sub>3</sub>·Et<sub>2</sub>O as a metal-free catalyst for direct reductive amination of aldehydes with amines using formic acid as a reductant
作者:Zhenli Luo、Yixiao Pan、Zhen Yao、Ji Yang、Xin Zhang、Xintong Liu、Lijin Xu、Qing-Hua Fan
DOI:10.1039/d1gc01468d
日期:——
direct reductive amination of aldehydes with amines using formic acid as a reductant under the catalysis of inexpensive BF3·Et2O has been developed. A wide range of primary and secondary amines and diversely substitutedaldehydes are compatible with this transformation, allowing facile access to various secondary and tertiary amines in high yields with wide functional group tolerance. Moreover, the
Triarylamine-based porous coordination polymers performing both hydrogen atom transfer and photoredox catalysis for regioselective α-amino C(sp<sup>3</sup>)–H arylation
ligands into one coordination polymer, we present herein a heterogeneous approach to the combination of hydrogen atom transfer (HAT) and photoredox catalysis for regioselective C–H arylation of benzylamines. The different molecular sizes and coordination modes of the ligands, tricarboxytriphenylamine (H3TCA) and tris(4-(pyridinyl)phenyl)amine (NPy3), in one coordination polymer consolidate the triarylamine
Visible-Light-Induced α-Amino C–H Bond Arylation Enabled by Electron Donor–Acceptor Complexes
作者:Chang Xu、Fang-Qi Shen、Gaofeng Feng、Jian Jin
DOI:10.1021/acs.orglett.1c00984
日期:2021.5.21
Enabled by electron donor–acceptor complexes, a novel visible-light-induced α-amino C–H bond arylation protocol, without a photoredox catalyst, has been disclosed. The protocol does not require any transition metal, oxidant, or exclusion of oxygen or moisture. A direct irradiation of the mixture of tertiary amines and benzonitriles with visible light in N,N-diethylethanamide in the presence of Cs2CO3
通过电子供体-受体配合物,已公开了一种新型的可见光诱导的α-氨基CH键芳构化方案,无需光氧化还原催化剂。该协议不需要任何过渡金属,氧化剂,也不需要氧气或湿气。在Cs 2 CO 3存在下,在N,N-二乙基乙酰胺中用可见光直接照射叔胺和苄腈的混合物,得到良好产率的α-芳基化胺。